基于化槽波导结构的极化独立的1 × 2光学功率分割器的设计
Fangxu Liu1, Huanlin Lv2, Hongyu Zhang3
1School of Information Science and Engineering, Dalian Polytechnic University, Dalian, 116034, China.
Scientific reports
|July 12, 2025
概括
这项研究介绍了一种新化/波导,用于偏振独立的光功率分割. 该设计尽量减少对集成光子应用的损失和复杂性.
科学领域:
- 集成光学 集成光学 集成光学
- 光子学是指光子学的使用方法.
- 材料科学 材料科学 材料科学
背景情况:
- 独立于偏振的光学功率分离器对于集成光子学至关重要.
- 现有的设计往往遭受结构复杂性和高光学损失.
- 需要高效和紧的偏振独立电源分离器.
研究的目的:
- 引入一种新的三层槽波导结构,用于两极化独立的光功率分割.
- 为了应对传统设计中复杂性和高损耗的挑战.
- 为了实现1550nm光学信号的1x2功率分割.
主要方法:
- 使用了三层Si/SiNx/Si槽波导结构.
- 使用离子辅助沉积用于可调节的SiNx折射率.
- 优化多模式干扰 (MMI) 区域宽度和圆波导.
- 使用频域有限差异 (FDE) 和 Eigenmode扩展 (EME) 方法模拟性能.
主要成果:
- 在1550 nm时实现了两极分离独立的1x2功率分裂.
- 在TE和TM模式下,已证明低插入损失低于0.034dB.
- 在100 nm带宽上表现出低插入损失,低于0.175 dB.
- 设备合区域的尺寸为4μm x 15.6μm.
结论:
- 新的波导设计提供了高效和低损失的偏振独立光功率分割.
- SiNx层的调节性折射率是实现偏振独立性的关键.
- 该设计显示了集成光路应用的巨大潜力.
相关概念视频
Half wave rectifier
A half-wave rectifier is a fundamental circuit in electronics, designed to convert alternating current (AC) voltage into a unidirectional voltage. It utilizes the simplest form of diode rectification, where the circuit comprises a single diode in series with a load resistor and an AC power source.
Full wave rectifier
A full-wave rectifier is a device that converts alternating current (AC) to direct current (DC) and is more efficient than its half-wave counterpart. It typically includes a center-tapped transformer, two diodes, and a load resistor. The secondary winding of the transformer is divided to provide two equal voltages of opposite polarities, which is the pivotal element of full-wave rectification.
Clipper Circuit
A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
Voltage Doubler Circuit
A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.


